Mark Barger, NBC News
The two night finale of "America's Got Talent" begins tonight.
A million dollars and a headlining show in Las Vegas will be on the line for the final six acts: Cami Bradley, Collins Key, Forte, Jimmy Rose, Kenichi Ebina and Taylor Williamson.
The winner, based on America's vote, will be announced Wednesday.
Several guest performers are lined up for Wednesday's finale, including country star Luke Bryan, singer Josh Groban and the group Icona Pop and The Rockettes with their smash single "I Love It."